Warning: The methods used to produce the HMD life tables have been modified
in two respects: 1) we have implemented a more precise way to calculate a0,
the mean age at death for children dying during the first year of life and
2) birth-by-month data (where and when available) are now used to more
accurately estimate population exposures. For more details about these
changes, see
Version 6 of the revised Methods Protocol,
particularly section
7.1 on Period life
tables and section 6 and Appendix E, on Death rates. Statistics
calculated under the prior methods (V5) are available here.